Question

Match the particle to its' description:
1. 42He
2. 0 -1 e
3. Y
4.
Is the same as a Helium atom
5.
Is an electron:
6.
Is pure energy:

a.Beta particle
b.Gamma particle
c.Alpha particle

Answer 1

Let's match the particles to their corresponding descriptions:

1. **\( ^4_2He \)** - This is a Helium nucleus, which consists of 2 protons and 2 neutrons.
**Match**: **3. Is the same as a Helium atom**
**Answer**: **c. Alpha particle** (since an alpha particle is essentially a Helium nucleus.)

2. **\( 0^{-1}e \)** - This notation represents a beta particle, specifically an electron.
**Match**: **5. Is an electron**
**Answer**: **a. Beta particle**

3. **\( \gamma \)** - This symbol represents a gamma ray, which is a form of electromagnetic radiation (pure energy).
**Match**: **6. Is pure energy**
**Answer**: **b. Gamma particle**

So, the final matches are:
- 1 (42He) -> **c. Alpha particle**
- 2 (0 -1 e) -> **a. Beta particle**
- 3 (Y) -> **b. Gamma particle**